body {
	margin: 0;
	padding: 0;
}
h1 {
	text-align: center;
	font-size: 16px;
	margin-top: 10px;
}
.box {
	display: flex;
	flex-direction:row ;
	justify-content: center;
	align-items: center;
	height: 15px;
}
.f-nav {
	display: block;
	position: relative;
	padding: 0;
	box-shadow: 0 10px 35px rgba(0, 0, 0, 0.2);
	background-color:rgb(100,100,100,0.3);
}
.f-nav li {
	float: left;
	height:15px;
	position: relative;
	z-index: 100;
	display: inline-block;
	list-style-type: none;
	width: 100px;
	color: #fff;
	text-align: center;
	cursor: pointer;
}
.sideline {
	position: absolute;
	background-image: linear-gradient(to right, #253c7f, #1999d6);
	left: 0;
	top: 0;
	color: #fff;
	min-height: 10px;
	z-index: 1;
	height: 15px;
	line-height: 60px;
	display: inline-block;
	list-style-type: none;
	width: 100px;
	color: #fff;
	text-align: center;
	cursor: pointer;
}
